MONROE ENERGY LLC — NPDES permit PA0012637: limits, due date and EPA's record

NPDES permit PA0012637 · Major NON-POTW · effective, expires 2030-03-31 · EPA's file as of 2026-09-19

EPA's record, 2025-09-01 to 2026-08-31

Last period with anything received: 2026-06-30. Most often over: Solids, total suspended (4).

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among PA permits in EPA's filings — check your permit).

Limits in force (234)

Outfall	Parameter	Statistic	Limit	Months
001	Perfluorooctanoic acid (PFOA)	DAILY MX	report only	all year
001	Perfluorooctanesulfonate	DAILY MX	report only	all year
001	Perfluorobutanesulfonic acid (PFBS)	DAILY MX	report only	all year
001	Hexafluoropropylene oxide dimer acid (HFPO-DA)	DAILY MX	report only	all year
001	Toxicity [chronic], Ceriodaphnia dubia	DAILY MX	report only	all year
001	Toxicity [chronic], Pimephales promelas [Fathead Minnow]	DAILY MX	report only	all year
001	Solids, total dissolved	MO AVG	<= 1000 mg/L	all year
001	Solids, total dissolved	DAILY MX	<= 2000 mg/L	all year
001	Solids, total dissolved	MO AVG	report only	all year
001	Solids, total dissolved	DAILY MX	report only	all year
001	TU Static 7Day Chronic Ceriodaphnia dubia	DAILY MX	report only	all year
001	Static 7Day Chronic Pimephales Promelas	DAILY MX	report only	all year
002	Temperature, water deg. fahrenheit	INST MAX	<= 110 deg F	all year
002	pH	INST MIN	>= 6 SU	all year
002	pH	INST MAX	<= 9 SU	all year
002	Solids, total suspended	MO AVG	<= 30 mg/L	all year
002	Solids, total suspended	DAILY MX	<= 60 mg/L	all year
002	Oil & Grease	MO AVG	<= 15 mg/L	all year
002	Oil & Grease	INST MAX	<= 30 mg/L	all year
002	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
002	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
002	Chlorine, total residual	MO AVG	<= .02 mg/L	all year
002	Chlorine, total residual	INST MAX	<= .05 mg/L	all year
002	Solids, total dissolved	MO AVG	report only	all year
002	Solids, total dissolved	DAILY MX	report only	all year
005	Oxygen demand, chem. [high level] [COD]	DAILY MX	report only	all year
005	pH	DAILY MX	report only	all year
005	Solids, total suspended	DAILY MX	report only	all year
005	Nitrogen, total [as N]	DAILY MX	report only	all year
005	Nitrite + Nitrate total [as N]	DAILY MX	report only	all year
005	Phosphorus, total [as P]	DAILY MX	report only	all year
005	Iron, total [as Fe]	DAILY MX	report only	all year
005	Lead, total [as Pb]	DAILY MX	report only	all year
005	Zinc, total [as Zn]	DAILY MX	report only	all year
005	Aluminum, total [as Al]	DAILY MX	report only	all year
006	Oxygen demand, chem. [high level] [COD]	DAILY MX	report only	all year
006	pH	DAILY MX	report only	all year
006	Solids, total suspended	DAILY MX	report only	all year
006	Nitrogen, total [as N]	DAILY MX	report only	all year
006	Nitrite + Nitrate total [as N]	DAILY MX	report only	all year
006	Phosphorus, total [as P]	DAILY MX	report only	all year
006	Iron, total [as Fe]	DAILY MX	report only	all year
006	Lead, total [as Pb]	DAILY MX	report only	all year
006	Zinc, total [as Zn]	DAILY MX	report only	all year
006	Aluminum, total [as Al]	DAILY MX	report only	all year
006	PCBs Wet Weather Analysis	DAILY MX	report only	all year
007	Oxygen demand, chem. [high level] [COD]	DAILY MX	report only	all year
007	pH	DAILY MX	report only	all year
007	Solids, total suspended	DAILY MX	report only	all year
007	Nitrogen, total [as N]	DAILY MX	report only	all year
007	Nitrite + Nitrate total [as N]	DAILY MX	report only	all year
007	Phosphorus, total [as P]	DAILY MX	report only	all year
007	Copper, total [as Cu]	DAILY MX	report only	all year
007	Iron, total [as Fe]	DAILY MX	report only	all year
007	Lead, total [as Pb]	DAILY MX	report only	all year
007	Zinc, total [as Zn]	DAILY MX	report only	all year
007	Aluminum, total [as Al]	DAILY MX	report only	all year
007	Perfluorooctanoic acid (PFOA)	DAILY MX	report only	all year
007	Perfluorooctanesulfonate	DAILY MX	report only	all year
007	PCBs Wet Weather Analysis	DAILY MX	report only	all year
007	Perfluorobutanesulfonic acid (PFBS)	DAILY MX	report only	all year
007	Hexafluoropropylene oxide dimer acid (HFPO-DA)	DAILY MX	report only	all year
008	Oxygen demand, chem. [high level] [COD]	DAILY MX	report only	all year
008	pH	DAILY MX	report only	all year
008	Solids, total suspended	DAILY MX	report only	all year
008	Nitrogen, total [as N]	DAILY MX	report only	all year
008	Nitrite + Nitrate total [as N]	DAILY MX	report only	all year
008	Phosphorus, total [as P]	DAILY MX	report only	all year
008	Iron, total [as Fe]	DAILY MX	report only	all year
008	Lead, total [as Pb]	DAILY MX	report only	all year
008	Zinc, total [as Zn]	DAILY MX	report only	all year
008	Aluminum, total [as Al]	DAILY MX	report only	all year
008	PCBs Wet Weather Analysis	DAILY MX	report only	all year
012	Oxygen demand, chem. [high level] [COD]	DAILY MX	report only	all year
012	pH	DAILY MX	report only	all year
012	Solids, total suspended	DAILY MX	report only	all year
012	Nitrogen, total [as N]	DAILY MX	report only	all year
012	Nitrite + Nitrate total [as N]	DAILY MX	report only	all year
012	Phosphorus, total [as P]	DAILY MX	report only	all year
012	Copper, total [as Cu]	DAILY MX	report only	all year
012	Iron, total [as Fe]	DAILY MX	report only	all year
012	Lead, total [as Pb]	DAILY MX	report only	all year
012	Zinc, total [as Zn]	DAILY MX	report only	all year
012	Aluminum, total [as Al]	DAILY MX	report only	all year
013	Oxygen demand, chem. [high level] [COD]	DAILY MX	report only	all year
013	pH	DAILY MX	report only	all year
013	Solids, total suspended	DAILY MX	report only	all year
013	Nitrogen, total [as N]	DAILY MX	report only	all year
013	Nitrite + Nitrate total [as N]	DAILY MX	report only	all year
013	Phosphorus, total [as P]	DAILY MX	report only	all year
013	Copper, total [as Cu]	DAILY MX	report only	all year
013	Iron, total [as Fe]	DAILY MX	report only	all year
013	Lead, total [as Pb]	DAILY MX	report only	all year
013	Zinc, total [as Zn]	DAILY MX	report only	all year
013	Aluminum, total [as Al]	DAILY MX	report only	all year
015	Oxygen demand, chem. [high level] [COD]	DAILY MX	report only	all year
015	pH	DAILY MX	report only	all year
015	Solids, total suspended	DAILY MX	report only	all year
015	Nitrogen, total [as N]	DAILY MX	report only	all year
015	Nitrite + Nitrate total [as N]	DAILY MX	report only	all year
015	Phosphorus, total [as P]	DAILY MX	report only	all year
015	Iron, total [as Fe]	DAILY MX	report only	all year
015	Lead, total [as Pb]	DAILY MX	report only	all year
015	Zinc, total [as Zn]	DAILY MX	report only	all year
015	Aluminum, total [as Al]	DAILY MX	report only	all year
101	Temperature, water deg. fahrenheit	INST MAX	<= 110 deg F	all year
101	Thermal Discharge	DAILY MX	<= 34878 MBTU/d	all year
101	pH	INST MIN	>= 6 SU	all year
101	pH	INST MAX	<= 9 SU	all year
101	Solids, total suspended	MO AVG	report only	all year
101	Solids, total suspended	DAILY MX	report only	all year
101	Solids, total suspended	MO AVG	report only	all year
101	Solids, total suspended	DAILY MX	report only	all year
101	Solids, total suspended	MO AVG	<= 30 mg/L	all year
101	Solids, total suspended	DAILY MX	<= 60 mg/L	all year
101	Solids, total suspended	MO AVG	<= 8506 lb/d	all year
101	Solids, total suspended	DAILY MX	<= 17013 lb/d	all year
101	Oil & Grease	MO AVG	<= 15 mg/L	all year
101	Oil & Grease	INST MAX	<= 30 mg/L	all year
101	Oil & Grease	MO AVG	<= 4253 lb/d	all year
101	Carbon, tot organic [TOC]	INST MAX	report only	all year
101	Carbon, tot organic [TOC]	INST MAX	report only	all year
101	Carbon, tot organic [TOC]	INST MAX	<= 5 mg/L	all year
101	Cadmium, total [as Cd]	QRTR AVG	report only	all year
101	Cadmium, total [as Cd]	DAILY MX	report only	all year
101	Cadmium, total [as Cd]	QRTR AVG	report only	all year
101	Cadmium, total [as Cd]	DAILY MX	report only	all year
101	Cadmium, total [as Cd]	QRTR AVG	report only	all year
101	Cadmium, total [as Cd]	DAILY MX	report only	all year
101	Copper, total [as Cu]	QRTR AVG	report only	all year
101	Copper, total [as Cu]	DAILY MX	report only	all year
101	Copper, total [as Cu]	QRTR AVG	report only	all year
101	Copper, total [as Cu]	DAILY MX	report only	all year
101	Copper, total [as Cu]	QRTR AVG	report only	all year
101	Copper, total [as Cu]	DAILY MX	report only	all year
101	Iron, total [as Fe]	QRTR AVG	report only	all year
101	Iron, total [as Fe]	DAILY MX	report only	all year
101	Iron, total [as Fe]	QRTR AVG	report only	all year
101	Iron, total [as Fe]	DAILY MX	report only	all year
101	Iron, total [as Fe]	QRTR AVG	report only	all year
101	Iron, total [as Fe]	DAILY MX	report only	all year
101	Lead, total [as Pb]	QRTR AVG	report only	all year
101	Lead, total [as Pb]	DAILY MX	report only	all year
101	Lead, total [as Pb]	QRTR AVG	report only	all year
101	Lead, total [as Pb]	DAILY MX	report only	all year
101	Lead, total [as Pb]	QRTR AVG	report only	all year
101	Lead, total [as Pb]	DAILY MX	report only	all year
101	Thallium, total [as Tl]	QRTR AVG	report only	all year
101	Thallium, total [as Tl]	DAILY MX	report only	all year
101	Thallium, total [as Tl]	QRTR AVG	report only	all year
101	Thallium, total [as Tl]	DAILY MX	report only	all year
101	Thallium, total [as Tl]	QRTR AVG	report only	all year
101	Thallium, total [as Tl]	DAILY MX	report only	all year
101	Aluminum, total [as Al]	QRTR AVG	report only	all year
101	Aluminum, total [as Al]	DAILY MX	report only	all year
101	Aluminum, total [as Al]	QRTR AVG	report only	all year
101	Aluminum, total [as Al]	DAILY MX	report only	all year
101	Aluminum, total [as Al]	QRTR AVG	report only	all year
101	Aluminum, total [as Al]	DAILY MX	report only	all year
101	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
101	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
101	Chlorine, total residual	MO AVG	<= .16 mg/L	all year
101	Chlorine, total residual	INST MAX	<= .5 mg/L	all year
101	Solids, total dissolved	MO AVG	report only	all year
101	Solids, total dissolved	DAILY MX	report only	all year
101	Solids, total dissolved	MO AVG	report only	all year
101	Solids, total dissolved	DAILY MX	report only	all year
101	Solids, total dissolved	MO AVG	report only	all year
101	Solids, total dissolved	DAILY MX	report only	all year
201	Oxygen, dissolved [DO]	INST MIN	>= 4 mg/L	all year
201	BOD, 5-day, 20 deg. C	MO AVG	<= 28 mg/L	all year
201	BOD, 5-day, 20 deg. C	DAILY MX	<= 56 mg/L	all year
201	BOD, 5-day, 20 deg. C	MO AVG	<= 1000 lb/d	all year
201	BOD, 5-day, 20 deg. C	DAILY MX	<= 2000 lb/d	all year
201	Oxygen demand, chem. [high level] [COD]	MO AVG	<= 539 mg/L	all year
201	Oxygen demand, chem. [high level] [COD]	DAILY MX	<= 1039 mg/L	all year
201	Oxygen demand, chem. [high level] [COD]	MO AVG	<= 19341 lb/d	all year
201	Oxygen demand, chem. [high level] [COD]	DAILY MX	<= 37271 lb/d	all year
201	pH	INST MIN	>= 6 SU	all year
201	pH	INST MAX	<= 9 SU	all year
201	Solids, total suspended	MO AVG	<= 30 mg/L	all year
201	Solids, total suspended	DAILY MX	<= 60 mg/L	all year
201	Solids, total suspended	MO AVG	<= 1076 lb/d	all year
201	Solids, total suspended	DAILY MX	<= 2152 lb/d	all year
201	Oil & Grease	MO AVG	<= 15 mg/L	all year
201	Oil & Grease	DAILY MX	<= 30 mg/L	all year
201	Oil & Grease	MO AVG	<= 538 lb/d	all year
201	Oil & Grease	DAILY MX	<= 1076 lb/d	all year
201	Nitrogen, total [as N]	MO AVG	report only	all year
201	Nitrogen, total [as N]	DAILY MX	report only	all year
201	Nitrogen, ammonia total [as N]	MO AVG	<= 20 mg/L	all year
201	Nitrogen, ammonia total [as N]	DAILY MX	<= 40 mg/L	all year
201	Nitrogen, ammonia total [as N]	MO AVG	<= 717 lb/d	all year
201	Nitrogen, ammonia total [as N]	DAILY MX	<= 1434 lb/d	all year
201	Phosphorus, total [as P]	MO AVG	<= 2 mg/L	all year
201	Phosphorus, total [as P]	DAILY MX	<= 4 mg/L	all year
201	Phosphorus, total [as P]	MO AVG	<= 72 lb/d	all year
201	Phosphorus, total [as P]	DAILY MX	<= 143 lb/d	all year
201	Sulfide, total [as S]	MO AVG	<= .4 mg/L	all year
201	Sulfide, total [as S]	DAILY MX	<= .91 mg/L	all year
201	Sulfide, total [as S]	MO AVG	<= 14.6 lb/d	all year
201	Sulfide, total [as S]	DAILY MX	<= 32.7 lb/d	all year
201	Chromium, hexavalent [as Cr]	MO AVG	<= .03 mg/L	all year
201	Chromium, hexavalent [as Cr]	DAILY MX	<= .07 mg/L	all year
201	Chromium, hexavalent [as Cr]	MO AVG	<= 1.2 lb/d	all year
201	Chromium, hexavalent [as Cr]	DAILY MX	<= 2.8 lb/d	all year
201	Chromium, total [as Cr]	MO AVG	<= .42 mg/L	all year
201	Chromium, total [as Cr]	DAILY MX	<= 1.2 mg/L	all year
201	Chromium, total [as Cr]	MO AVG	<= 15.2 lb/d	all year
201	Chromium, total [as Cr]	DAILY MX	<= 43.7 lb/d	all year
201	Antimony, total [as Sb]	MO AVG	report only	all year
201	Antimony, total [as Sb]	DAILY MX	report only	all year
201	Aluminum, total [as Al]	MO AVG	report only	all year
201	Aluminum, total [as Al]	DAILY MX	<= 4.64 mg/L	all year
201	Aluminum, total [as Al]	MO AVG	report only	all year
201	Aluminum, total [as Al]	DAILY MX	<= 166 lb/d	all year
201	Selenium, total [as Se]	MO AVG	<= .03 mg/L	all year
201	Selenium, total [as Se]	DAILY MX	<= .06 mg/L	all year
201	Selenium, total [as Se]	MO AVG	<= 1.08 lb/d	all year
201	Selenium, total [as Se]	DAILY MX	<= 2.15 lb/d	all year
201	Phenolics, total recoverable	MO AVG	<= .36 mg/L	all year
201	Phenolics, total recoverable	DAILY MX	<= 1 mg/L	all year
201	Phenolics, total recoverable	MO AVG	<= 13 lb/d	all year
201	Phenolics, total recoverable	DAILY MX	<= 37.3 lb/d	all year
201	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
201	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
201	Chlorine, total residual	MO AVG	<= .16 mg/L	all year
201	Chlorine, total residual	INST MAX	<= .5 mg/L	all year
201	Cyanide, free available	MO AVG	report only	all year
201	Cyanide, free available	DAILY MX	report only	all year
201	PCBs Dry Weather Analysis	DAILY MX	report only	all year
201	Solids, total dissolved	MO AVG	report only	all year
201	Solids, total dissolved	DAILY MX	report only	all year
201	BOD, carbonaceous [20 day, 20 C]	MO AVG	<= 1500 lb/d	all year